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containing the desired characters adapted to lowland rice cultivation were grouped in cluster 1. The ... morphological, genetic or physiological characters ..... List of characters studied. N° ..... many biotic stresses such as weeds competitiveness.
Journal of Plant Breeding and Crop Science Vol. 3(5). pp. 74-86, May 2011 Available online http://www.academicjournals.org/jpbcs ISSN 2006-9758 ©2011 Academic Journals

Full Length Research Paper

Assessing phenotypic diversity of interspecific rice varieties using agro-morphological characterization Y. D. Moukoumbi1,2*, M. Sié1, R. Vodouhe3, B. N’dri1, B. Toulou1, S. A. Ogunbayo1 and A. Ahanchede2 1

Africa Rice Center (AfricaRice), 01 BP 2031, Cotonou, Benin Republic. Faculty of Agronomy Science, University of Abomey, Calavi, 01 BP 526 Cotonou, Benin Republic. 3 Bioversity International, 01 BP 2031 Cotonou, Benin Republic.

2

Accepted 20 April, 2011

The aim of this study is to identify the phenotypic variability of 60 lowland NERICA varieties and 18 promising lines for better management of their genetic inheritance. The experimental design used was an augmented randomized complete block. Data on 23 agro-morphological traits were collected and analyzed. The analysis of variance showed highly significant differences (P